Physics, 19.09.2021 02:30 aide1234564
A ball is released from rest from the twentieth floor of a building. After 1 s, the ball has fallen one floor such that it is directly outside the nineteenth-floor window. The floors are evenly spaced. Assume air resistance is negligible. What is the number of floors the ball would fall in 3s after it is released from the twentieth floor?
a. 3 floors or less
b. 4 to 6 floors
c. 7 to 10 floors
d. 11 floors or more
Answers: 2
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Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
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If element x has 99 protons how many electrons does it have
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A ball is released from rest from the twentieth floor of a building. After 1 s, the ball has fallen...
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